20159684

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{23}}^1\times {\mathrm{607}}^1$

素因数の和:672

約数の個数: 36

約数和(自身を含む): 38916864

約数和(自身を除く): 18757180

約数列:

[1, 2, 4, 19, 23, 38, 46, 76, 92, 361, 437, 607, 722, 874, 1214, 1444, 1748, 2428, 8303, 11533, 13961, 16606, 23066, 27922, 33212, 46132, 55844, 219127, 265259, 438254, 530518, 876508, 1061036, 5039921, 10079842, 20159684]

約数ペア:

[(1, 20159684), (2, 10079842), (4, 5039921), (19, 1061036), (23, 876508), (38, 530518), (46, 438254), (76, 265259), (92, 219127), (361, 55844), (437, 46132), (607, 33212), (722, 27922), (874, 23066), (1214, 16606), (1444, 13961), (1748, 11533), (2428, 8303)]